<!DOCTYPE html>
<html lang="zh-hans">
<head>
  <meta charset="UTF-8">
  <title>留言板</title>
</head>
<body>
  <h1>留言板</h1>
  <input type="text" id="who" name="who" placeholder="谁">
  <input type="text" id="what" name="what" placeholder="说了什么">
  <button type="button">留言</button>
  <table>
    <thead>
      <tr>
        <th>#ID</th>
        <th>谁</th>
        <th>说了什么</th>
      </tr>
    </thead>
    <tbody>
    </tbody>
  </table>

  <script src="message-board.js"></script>
</body>
</html>